To add to this topic,
Up-here in Quebec, chemicals like Cu are banned. In fact about 95% of what the industry sells for pond management in the USA is unavailable in Canada... how do we get rid of algae?
Exactly like Bing said, we manage the nutrients instead. And it really works!
One note though, be careful of the term enzymes, bacteria will produce enzymes. Enzymes wont reproduce, they are a by-product of bacterial activity.
Another important note would be to ask for the freshest batch of bacteria and to ask for the count per unit (how many millions or billions per gram) One pound of bacteria with a 1 million cfu is not as effective as one with 1 billion cfu.
What is CFU? :In microbiology, colony-forming unit (CFU) is a measure of viable bacterial numbers. Unlike in direct microscopic counts where all cells, dead and living, are counted, CFU measures viable cells. By convenience the results are given as {CFU}/{mL}, colony-forming units per milliliter.
Also, if you do not aerate, try using bacteria mixes that are design for wastewater, they will still function with less oxygen.
Our government decided for us what we can sell; and you know it aint that bad, its actually more efficient in the long run...
